In about a month, my family and I will be heading on a vacation and won't return to our zoo for about a week. I have left my chickens before and never had problems, but a week in the hot July heat makes me nervous, and we have lots of new additions; ducks, chicks and peachicks. Any tips on how to make food last and keep my chicks from killing each other in the brooder? We have 3 stages of babies, a pullet who should be ok in the big girl's coop, 9 4 week old chicks&peachicks, and 3 baby chicks who will only be about 2 weeks old when we leave. Will my 2 chick groups clash? I was thinking a huge round cardboard circle with a screen over the top for the babies.